Debbie Kilroy OAM (born 1961), née Deborah Harding, is an Australian human rights activist and prison reformer. She is known for having founded Sisters Inside, an independent community organisation based in Queensland, Australia, that advocates for the human rights of women and girls in the criminal legal system. She is a qualified lawyer, who in 2007 was the first person with serious convictions to be allowed to practise law by the Supreme Court of Queensland.